2025年外国语学校小升初入学考试中英文奥数题库

外国语学校小升初英语奥数训练题第一部分1、 三个素数的倒数之和是，则这三个素数中最大的是多少？1. The sum of the reciprocals of three prime numbers is, so what is the greatest one among the three prime numbers?2、 有一种分数，它的分子加 2，可以约简为；它的分母减 2，可以约简为。这个分数是多少？2. There is a fraction. If its numerator adds 2, it can be reduced to be; if its denominator subtracts 2, it can be reduced to be. So what is this fraction? 3、 一种数分别除以，，，所得的商都是自然数。这个数最小是多少？3. A number is divided by, and respectively and the quotients are all natural numbers. So what is the minimum value of this number? 4、 一片竹林，去年不开花的竹子比开花的 2 倍还多 55 棵，今年又多了 100 棵开花，这时开花的竹子恰好是不开花的 4 倍，这片竹林有多少棵竹子？4. There is a bamboo forest. Last year, the non-blooming bamboos were two times and 55 more than the blooming bamboos. With another 100 bamboos blooming this year, the blooming bamboos are four times as many as the non-blooming bamboos. So, how many bamboos are there in this forest? （红色的地方我有点不确定，葛老师您看看应当怎么翻）5、 从中去掉两个分数，余下的分数之和为 1。这两个分数是哪两个分数？5. Take out two fractions from to make the sum of remaining fractions to be 1. So what are these two fractions? 6、 一种整数与它的倒数的和等于 20.05，这个整数是多少？它的倒数是多少？6. The sum of an integer and its reciprocal is 20.05, so what is this integer and what is its reciprocal? 7、 四个非零自然数的和为 38，这四个自然数的乘积的是小值是多少？最大值是多少？7. The sum of four nonzero natural numbers is 38, so what can the minimum product of these four natural numbers be? And what can the maximum product be?8、 已知 a 是质数，b 是偶数，且 a2+b=，则 a+b+1 成果是多少？8. It is known ...